Characterisation of three-body loss in ultracold <sup>166</sup>Er and the production of large dipolar Bose–Einstein condensates

ORAL

Abstract

Dipolar quantum droplets and supersolids are subject to intense research. However, studies are often limited by the achievable atom numbers and hindered by high three-body loss rates. In this talk, we present our study of density-dependent atom loss in an ultracold gas of 166Er, identifying several previously unknown features which display a strong temperature dependence. We use the detailed knowledge of the loss landscape to produce dipolar Bose–Einstein condensates with more than 2×105 atoms, pointing towards optimal strategies for the study of large-atom-number dipolar gases in the droplet and supersolid regimes.

*This work was supported by UK EPSRC Grants No. EP/P009565/1 and EP/T019913/1. P. J. acknowledges funding from the Royal Society and NTP Grant No. NTP-NFTÖ-21-C-0060, J. K. from the Oxford Physics Endowment for Graduates and G. L. from Wolfson College, University of Oxford.

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Presenters

  • Jiří Kučera

    • University of Oxford

Authors

  • Milan Krstajic

    • Clarendon Laboratory, University of Oxford

  • Jiří Kučera

    • University of Oxford

  • Péter Juhász

    • University of Oxford

  • Lucas R Hofer

    • University of Oxford
    • Clarendon Laboratory, University of Oxford

  • Gavin Lamb

    • University of Oxford
    • Clarednon Laboratory, University of Oxford

  • Anna L Marchant

    • Rice Univ

  • Robert P Smith

    • University of Oxford